6970 vs 6950 at the same clocks

[brencat]

Take a look at this:
http://www.overclock.net/ati/909086-6950-shaders-unlocked-vs-full-unlocked.html

Unlocking the shaders does not give you a whole lot of performance. What I will probably do is somewhere down the line (if I keep this card for a while) maybe in a year I will unlock the shaders but right now I don't need to. Maybe by then there will be a bigger performance difference between the 6950 and 6970 at the same clocks, in which case it would be beneficial to unlock it.

I use Afterburner for OCing and that is how you get voltage control and around the 840MHz limit. Voltage control was unlocked from the start for me but I think that is because I had the stock BIOS on my card. If you flash the card I think there is a workaround you have to do.

Yes, I read that entire thread which led me to believe that unclocking/flashing is not worth it PROVIDED you can get the clocks up north of 840/1325. WorldExclusive mentioned he went back to stock bios and overclocked to 880/1325 per his sig. But he never mentioned what tools he was using to get those clocks.

Did you have to edit the Afterburner config file to enable unofficial overclocking? Also, did you also have to add 12-20% to Power control with 900 core or strictly use Kombuster within Afterburner to add voltage ?

Sorry for the questions...I'm not sure of the relationship of CCC when using Afterburner, etc.

Lastly, what driver version are you using... 11.1 WHQL released on 1/26/11 ??

Thanks, B

 

[thilanliyan]

I'm using 11.1 WHQL. Kombustor has nothing to do with volts, it is just for stability testing. For me I didn't have to unlock the volts but yeah I think I might have had to edit the .cfg file to go higher with the clocks.